Agricultural implement



E. M. HEYLMAN.

AGRICULTURAL IMPLEMENT. I APPLICATION FILED MAR. I4. I9I8.

Patented Mar. 16,1920.V

IVTNLSSES nnrrn strains rnfrnnr ferries.

EDWARD M. HEYLL'IAN, OF SOUTH' BEND, INDIANA, ASSIGNOR T0 OLIVERCHILLEI) I PLOW WORKS, OF SOUTH BEND, INDIANA.

AGRICULTURAL ILVIILEMENT.

Specification of Letters Patent.V Patentd Mar. 16, 1920.

Application filed March 111, 1918. Serial No. 222,334. i

To all whom #may concern:

Be it known that I, EDWARD M. IIEYLMAN, a citien of the United States,and a resident of South Bend, in the county of Saint Joseph and State ofIndiana, have invent-ed certain new and useful Improvements inAgricultural Implements; and I do hereby declare the following to be afull, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

This invention relates to improvements in agricultural implements, suchas plows, and more particularly to mountings for the disks orsoil-engaging members thereof,- one object of the invention being to soconstruct and arrange a mounting for the disk or soil-engaging memberthat the pitch ot the same may be adjusted without lowering or raisingits cutting edge. f

With this and other objects in view-v, the invention consists in certainnovel features of construction and combinations of parts as hereinafterset Jforth and pointed out in the claims. l

In the accompanying drawings; Figure 1 is a sectional view through asoil-engaging disk and its mounting embodying my im` provements; Fig. 2is a view in elevation showing the supporting armor plate; Fig. 3 is adetail view of the bearing block for the supporting arm or plate; Fig. iis a sectional view on the line fl-s of Fig. 1, and Figs. 5, 6, 7 and 8are detail views.

1 represents a soil-engaging disk, 2 a beam or other part of a plowstructure with which the disk is connected through the medium of theinstrumentalities hereinafter described.

A spindle 3 for the disk is provided with an annular flange i which issecurely fastened to the back of said disk by means of bolts 5. Thespindle 3 is mounted in a hub 6 and the latter is connected, through themedium of an arm or plate 7a (which may be integral with said hub) andattaching devices, with the beam or frame member 2. The hub 6 is alsomade with an opening 6a to permit dirt that may work in from the top andfront, to drop out.

The spindle 3 is made large at the portion thereof nearest the ange d inorder to gain adequate strength at this portion of the spindle, and theouter portion of said spindle is contracted in size so that the outerend of the bearing may be so reduced in size as .the bank in case ofdeep plowing.

to prevent the same from dragging against The hub 6 has the same Generalshape as the spindle, and two separate bushings 7', 8 are cmployed,-tlrebushing 7 encircling the larger portion ci the spindle, and the bush ing8 encircling the smaller portion thereof. These bushings are made'withkeys 9 to enter suitable key-ways in the hub, and the space between thetwo bushings forms a lubricant chamber 10, with which a lubricant cup 11placed upon the top or the hub communicates` The larger bushing 7 bearsat one end against a shoulder 12 on the spindle and at the other end ithas a thrust bearing against a flange or rib 13in the hub 6, while thesmaller bushing 8 rests at one end against a flange or rib 1li in thehub and at the other end against a cap 15 screwed into the end oi thehub. Thus the thrust or" the disk coming against the'bushing member 7will be resisted by the rib 13, and displacement of the smaller bushingmember 8 will be prevented when the plow is raised, by the rib 11i. Abolt 16 passes through the spindle 3 and its inner portion is threadedto enter the threaded portion of the bore in said spindie. The outer endof the bolt 16 is provided with a head 17, between which and the end ofthe spindle, a washer 18 is located. This washer overhangs the bushingmember 8 and is provided with lugs 19 which enter sockets 20 in the endof the spindle 3. It will be Seen that the bearing parts of the spindleat the bushings are substantially straight, andthis is an advantage overa taper construction because, if there is any end play, there will notbe too much up-anddown play in the bearing when the spindle is drawnforwardly.

The supporting'arin 7 is made in the form of a comparatively broad plateor casting having suitable strengthening ribs 21, and said arm or plateis curved somewhat as indicated at 22. The arm or plate 7at is. providedadjacent to its respective side edges with parallel elongated slots 23,23,

and at respective sides of each of these slots, Y

on said inner face of the block 25, Wherebj,7

4notches 27 are formed, and sets of lugs 28 on the arm or plate 7 meshin said notches. Bolts 29 pass through the beam 2, through holes 30 inlthe block 25, and through the nut on the bolt 29 and move the'arm orplate 7;L up or down on the block 25,--the intermeshing of the lugs 2*28holding the same in the position to which it may be adjusted when thenut on the bolt shall have been again tightened. By reason of the curvedbearing of the arm or plate 7n on the block 25, the soil-engaging diskmay be adjusted from Vone pitch to another Without` raising or loweringthe cutting edge of said disk relatiwelj,7 to the ground, and the samewould be true were a soil-engaging member of the mold-board and c:haretype of plow body employed instead of a disk. i

Important advantages are incident to the ctnstruction of the adjustingmeans above described, Lin that the various adjustments of the pitch canbe etlecte'd Without necessitating adjustment of the carrying Wheels onthe frame to insure uniform de 3th of blow-` ing when the soil-engagingmember is ad'- justed from one pitch to another.

I do not Vclaim herein the specific construction of the disk bearingdevices herein disclosed, the same constituting the subject of adivisional application tiled September 27th, 1918, and designated bySerial No. 255,928.

Various slight changesv might be made in' the details of' constructionof my invention Without departing from the spirit thereof or limitingits scope and hence l do not Wish to restrict myself to the precisevdetails herein set forth.

Having fully described my invention what l claim as nen7 and desire tosecure by Letters-Patent, is p l. The combinationwith a frame mem- 'bei'anda soil-engaging member, of an arm connected with the; lsoil engagingmember and having a curved portion and 'an elongated slot, a fixed blockdisposed between the `frame member and the curved portion of said arm,said block and arm vhavingV intcrmeshing. lugs, Vand a bolt passingthrough the frame member and block and through the elongated slot insaid arm, said bolt provided with a head at one end and a nut on theother end.

2. The combination with a frame member, and a soileengaofing member, ofa plate torn ing an arm `connected With said soil-engaging member andhaving a Vcurved portion provided with a plurality of slots, a fixedbearing block disposed between said frame member and the curved portionof-said plate, said plate andv block having intermeshing lugs adjacentto the, slotted portion of the plate, bolts passing through vthe framemeinber and block and through the slots of said plate, each of saidbolts having head at one end and a nut on the other end, and meansv 'forpreventinof said bolts from turn` ing.

In testimony whereof, I havejsigned this specication in the presence oftwo subscribing Witnesses.

j l Y EDWARD M. HEYLMAN.

.Witnessesz 1 EDWIN Nieren, GEORGE LANPSrnRn. .j

